Adsorption Properties of Sulfamethoxazole on Micro-plastics
In this study,polyvinyl chloride and polyethylene were used as micro-plastics to investigate the adsorptionkinetics and thermodynamic properties of sulfamethoxazole.The results showed that the adsorption capacity of sulfamethoxazole was larger on polyvinyl chloride,and the pseudo-second-order model was more suitable for describing the adsorption kinetics of sulfamethoxazole on the two micro-plastics.The adsorption thermodynamic process of sulfamethoxazole on polyvinyl chloride and polyethylene was well fitted by the Langmuir model,indicating that the adsorption process was monolayer adsorption.The adsorption of sulfamethoxazole by the two micro-plastics was a spontaneous,endothermic and entropy-increasing process.
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